|Marathon Artists

|Provided

Outdoor roller rink Blue Cross RiverRink Summerfest opens for the season with a weekend of festivities along the Delaware waterfront. Things kick off Friday with an open skate at 1 p.m. Later that night, hit the rink to the sounds of DJ Jazzy Jeff, starting at 9 p.m. Saturday offers more family-friendly fun, with face painting, skating performers, arts and crafts booths and other festival-like to-dos. When you need a break from skating, hop into the boathouse-style lodge for food and drinks from Garces Group, Chickie’s and Pete’s Waterfront Crabshack, Franklin Fountain and more.

Hit up Spruce Street Harbor Park Saturday to celebrate Memorial Day a little early. Kid-friendly activities like balloon artists and a make-your-own sun catcher workshop happen from 1 to 4 p.m. Musical acts Lullunas, Randy Shine, and the Beat Tells perform live from 2 to 8 p.m. As always, the beer garden, and onsite restaurants like Distrito Taco, Federal Donuts and The Little Fat Ham will be cranking out grub and booze all day long.

FUNDRAISERS

Guac OffMay 26, 6 p.m.Morgan’s Pier221 N. Columbus Blvd. $35

Eleven local restaurants bring their best guacamole recipes to Morgan’s Pier Thursday for a competition to find the best avocado et al. mash in Philadelphia. Show up after work to try unlimited chips and guac from folks like Cantina Dos Segundos, Revolution Taco and Xochitl, and drinks at the bar. Margaritas, anyone? Ticket sales benefit local nonprofit MANNA, which works to deliver nourishing meals to locals suffering from life-threatening diseases like cancer and HIV.

Raise a toast to the Philadelphia Mural Arts Program Thursday night at this soirée that raises funds for the organization’s work to mural-up blighted neighborhoods across the city. Your ticket grants you cocktails, hors d'oeuvres and live entertainment from local acts Klip Collective, Mr. Sonny James and Unidos de Filadelfia. Stick around for the after-party to dance to tunes from a lineup of turntablists from the Scratch DJ Academy.

Melbourne-based singer-songwriter Courtney Barnett comes to Philly fresh off her boisterous performance last week on the season finale of SNL. Since the last time she was in Philly--at last year’s XPN Fest--the Aussie rocker snagged a Best New Artist Grammy nomination, and released a twangy new single, “Three Packs a Day.”

Philadelphia experimental pop collaborative Son Step hosts an album release show for their second full-length work, “Natural Majique.” So far they’ve only teased us with two singles, which hints at a project rife with upbeat synth sounds and dreamy vocals from twin brothers Jon and Chris Coyle. Funk rockers Minka, and pop act Circadian Rhythms open.

West Philly transplant RJD2 says this city’s influence is all over his latest album, “Dame Fortune,” which Apple Music calls his strongest work since his 2002 debut. On it, he borrows from the “deeply felt soul music” Philadelphia pioneered, with collaborations from local blues wunderkind Son Little, rapper Phonte and Ohio singer-songwriter Josh Krajcik. Give it a listen live when he brings it to Union Transfer Saturday night.

Philly DJ Dave Pianka’s Making TIme marks its 16th year in the sweaty dance party business with a slew of “Super-Sweet Sixteen Festivities.” The latest takes place Thursday night, when they welcome London electronic superstar Four Tet to their new warehouse digs in Fishtown. The night kicks off with leftfield producer and one-time Four Tet-remixer Anthony Naples.

Philadelphia Theatre Company’s latest is a “humorous political fantasy” that catches up with Hillary and Bill Clinton on the night she’s facing defeat in the last primary battle of 2008. Written by Lucas Hnath, the play has been called audacious and whip-smart, praised for an honest portrayal of life in the public eye. Whip out your spiffiest pant suit for the ultimate experience.